we have designed a pll,with nearly 4ps RMS jitter with OSC measured. but with the Spectrum Analyzer ,the phase noise has the different value in the different frequency point . 5 n; U, X c2 f% {5 H- V+ X1 b; nwe want to know the different of the RMS jitter and phase noise: RMS jitter ,only a value ,but the phase noise has the different value in the different frequency point . why ? ! k/ W+ a0 @0 ?; j$ f x* o, Cthank you
I know the define of the rms jitter and phase noise , 1 r4 c7 a. ~7 q: u) r5 a" \but I want to know the relation of the rms jitter and phase noise. : a# |2 A5 a5 D+ R' L. ~0 Z8 h! ^one of paper said the rms jitter is the integral of the phase noise, but from which offset frequency?& |% Y' n, K3 q+ ^2 P! ]. F. l
and according to the test result, this relation is no true. why ?! `( [& O% U: S# Q! J
thank you !